How to cite a speech only available as a YouTube-video

With package biblatex, you can cite online entries (@online) without anything to care about. All entry fields support an url field as well.

Remember, you can even refer to a very specific moment by appending the time to the youtube link.

\begin{filecontents}{\jobname.bib}
    @online{youtube,
        title = {Some cool motion sensor stuff},
        date = {2015},
        organization = {Youtube},
        author = {Peter Zatko and  Ivan Poupyrev and  Rachid El
        Guerrab and  Regina Dugan},
        url = {https://www.youtube.com/watch?v=mpbWQbkl8_g#t=20m15s},
    }
\end{filecontents}
\documentclass{article}
\usepackage[maxnames=10]{biblatex}
\addbibresource{\jobname.bib}
\usepackage{hyperref}
\begin{document}
\cite{youtube}
\printbibliography
\end{document}

* links hidden for the screenshot

@Misc{Zatko15,
  author =   {Peiter Zatko and Ivan Poupyrev and
                  El Guerrab, Rachid and Regina Dugan},
  title =    {{G}oogle {I/O} 2015. {A} little badass. 
                  {B}eautiful. {T}ech and human. {W}ork and love. {ATAP}},
  howpublished = {\url{https://www.youtube.com/watch?v=mpbWQbkl8_g}},
  month =    {May},
  day =          29,
  year =     2015
}